AVL is a program for the aerodynamic and flight-dynamic analysis of
rigid aircraft of arbitrary configuration. It employs an extended
vortex lattice model for the lifting surfaces, together with a
slender-body model for fuselages and nacelles. General nonlinear
flight states can be specified. The flight dynamic analysis combines a
full linearization of the aerodynamic model about any flight state,
together with specified mass properties.
Homepage: http://web.mit.edu/drela/Public/web/avl/